An intense overnight thunderstorm has dumped more than 200 millimetres of rain on parts of Queensland's Western Downs, causing flash flooding and cutting off roads.

The towns of Chinchilla, Tara and Moonie all received a drenching and authorities are now monitoring river rises in Charley's Creek and the Condamine, Moonie and Weir rivers.

Showers and thunderstorms also hit Queensland's northern tropics, the far west, the southern districts and the Central Highlands.

Weather bureau forecaster Amber Young says the storm hovered over the Western Downs area for quite some time.

"We've got a moderate flooding reading on the Weir River at O'Connor - so that gauge shot up quickly this morning - and we've also got minor flooding currently at Chinchilla and also at the creek at Windermere," she said.

Western Downs Mayor Ray Brown says there has been no reports of damage to homes, but the SES has been out checking residents are safe.

"This was a large cloud burst and a significant light show that went with it, an enormous amount of lightning and obviously a major spectacular," he said.

"But I think the rainfall of 220 millimetres in that period of time is obviously excessive.

"Even though it's isolated at this stage, there is concerns out there.

"Twenty-four hours ago we were having major issues with fires and to have this enormous storm front that came through, deliver such enormous rain obviously brings back memories of two years ago."

Councillor Brown asked the community to be careful and contact the SES of any concerns about flooding.